Created
August 18, 2015 19:00
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HBase Test Case
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/* | |
* Compile and run with: | |
* javac -cp $(hbase classpath) TestHBase.java | |
* java -cp .:$(hbase classpath) TestHBase | |
*/ | |
import java.net.*; | |
import org.apache.hadoop.fs.*; | |
import org.apache.hadoop.conf.Configuration; | |
import org.apache.hadoop.hbase.*; | |
import org.apache.hadoop.hbase.client.*; | |
import org.apache.hadoop.hbase.util.*; | |
public class TestHBase { | |
public static void main(String[] args) throws Exception { | |
Configuration conf = HBaseConfiguration.create(); | |
//conf.set("hbase.zookeeper.quorum", "10.10.15.10:5181,10.10.15.11:5181,10.10.15.12:5181"); //This API is a No-Op | |
HBaseAdmin admin = new HBaseAdmin(conf); | |
try { | |
if (admin.isTableAvailable("javatable")) { | |
System.out.println("javatable exists, will be deleted then recreated"); | |
admin.disableTable("javatable"); | |
admin.deleteTable("javatable"); | |
} | |
HTableDescriptor desc = new HTableDescriptor(Bytes.toBytes("javatable")); | |
HColumnDescriptor coldef = new HColumnDescriptor( Bytes.toBytes("cf1")); | |
desc.addFamily(coldef); | |
admin.createTable(desc); | |
//String tablePath = URI.create("maprfs:/mapr/qa/javatable").getPath(); | |
// admin.createTable(tablePath); | |
HTable jtable = new HTable(conf, "javatable"); | |
// String tablePath = URI.create("maprfs:/mapr/M7SE/tables/javatable").getPath(); | |
//HTable jtable = new HTable(conf, tablePath); | |
Put put = new Put(Bytes.toBytes("test-key")); | |
put.add(Bytes.toBytes("cf1"), Bytes.toBytes("q1"), Bytes.toBytes("test-value")); | |
jtable.put(put); | |
Get get = new Get(Bytes.toBytes("test-key")); | |
get.addColumn(Bytes.toBytes("cf1"), Bytes.toBytes("q1")); | |
Result jresult = jtable.get(get); | |
byte[] jval = jresult.getValue(Bytes.toBytes("cf1"), Bytes.toBytes("q1")); | |
System.out.println("Value: " + Bytes.toString(jval)); | |
} finally { | |
admin.close(); | |
} | |
} | |
} |
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